AttheoutbreakoftheSpanishCivilWar,thenunMariaisforcedtofleeherconvent.Shetakesrefugeinabrothel,untilitisliberatedbyawoman'sanarchistgroup.Mariajoinsthegroupandeventuallygoestothefront.Thewomen'sgroupfacestheproblemsoffightingnotonlythenationalists,butalsofactionsontheleftseekingtoimposeamoretraditionalmilitarystructure.
